Police are seeking the public's help in finding a missing 52-year-old man.

Jonathan Byrd was reported missing Saturday after leaving his home in the 2100 block of Northeast Schuyler Street. Detectives learned the man was near his home on Tuesday, but witnesses said he left in a van before police arrived.

Byrd's family said he has a medical condition that could endanger his safety, police said.

Byrd is described as standing 5-foot-11, weighing about 200 pounds, has short, salt and pepper hair and hazel eyes.

Police said Byrd may a few days' growth of facial hair on his face. He is believed to be driving a green 1996 Mercury Villager van with Oregon license plates UXK823.

Anyone with more information on Byrd's whereabouts is asked to call 9-1-1 or Det. Mike Weinstein at 503-823-0446.